Document Detail

Acute hormonal responses to a single bout of heavy resistance exercise in trained power lifters and untrained men.
MedLine Citation:
PMID:  10638340     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to investigate the acute responses of both stress and fluid regulatory hormones to a single bout of resistance exercise in both trained and untrained men. Seven competitive power lifters (PL) and 12 untrained subjects (UT) performed one set of the leg press exercise to exhaustion at 80% of their respective one-repetition maximum. Blood samples were obtained twice prior to exercise (at P1 and P2), immediately postexercise (IP), and at 5 minutes postexercise (5PE). Compared to P1 and P2, plasma epinephrine, norepinephrine, dopamine, atrial peptide, osmolality, and blood lactic acid increased significantly (p < or = 0.05) at IP. Plasma epinephrine, norepinephrine, atrial peptide, and blood lactic acid concentrations remained elevated at 5PE compared to P1 and P2. Plasma renin activity and angiotensin II were significantly elevated at 5PE compared to P1, P2, and IP, and this increase was significantly greater in PL compared to UT at 5PE. These data indicate that an acute bout of resistance exercise dramatically affects secretion of stress and fluid regulatory hormones.
W J Kraemer; S J Fleck; C M Maresh; N A Ratamess; S E Gordon; K L Goetz; E A Harman; P N Frykman; J S Volek; S A Mazzetti; A C Fry; L J Marchitelli; J F Patton
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Canadian journal of applied physiology = Revue canadienne de physiologie appliquée     Volume:  24     ISSN:  1066-7814     ISO Abbreviation:  Can J Appl Physiol     Publication Date:  1999 Dec 
Date Detail:
Created Date:  2000-02-01     Completed Date:  2000-02-01     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9306274     Medline TA:  Can J Appl Physiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  524-37     Citation Subset:  IM    
Human Performance Laboratory, Ball State University, Muncie, IN 47306, USA.
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MeSH Terms
Adrenergic alpha-Agonists / blood
Aldosterone / blood
Angiotensin II / blood
Atrial Natriuretic Factor / blood
Blood Glucose / analysis
Blood Pressure / physiology
Dopamine / blood
Epinephrine / blood
Follow-Up Studies
Hormones / blood*
Hydrocortisone / blood
Lactic Acid / blood
Norepinephrine / blood
Osmolar Concentration
Physical Endurance / physiology
Renin / blood
Stress, Physiological / blood,  physiopathology
Water-Electrolyte Balance / physiology
Weight Lifting / physiology*
Reg. No./Substance:
0/Adrenergic alpha-Agonists; 0/Blood Glucose; 0/Hormones; 11128-99-7/Angiotensin II; 50-21-5/Lactic Acid; 50-23-7/Hydrocortisone; 51-41-2/Norepinephrine; 51-43-4/Epinephrine; 52-39-1/Aldosterone; 85637-73-6/Atrial Natriuretic Factor; EC

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